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1// SPDX-License-Identifier: GPL-2.0
2#include "../util.h"
3#include "../string2.h"
4#include "../config.h"
5#include "../../perf.h"
6#include "libslang.h"
7#include "ui.h"
8#include "util.h"
9#include <linux/compiler.h>
10#include <linux/list.h>
11#include <linux/rbtree.h>
12#include <linux/string.h>
13#include <stdlib.h>
14#include <sys/ttydefaults.h>
15#include "browser.h"
16#include "helpline.h"
17#include "keysyms.h"
18#include "../color.h"
19#include "sane_ctype.h"
20
21static int ui_browser__percent_color(struct ui_browser *browser,
22 double percent, bool current)
23{
24 if (current && (!browser->use_navkeypressed || browser->navkeypressed))
25 return HE_COLORSET_SELECTED;
26 if (percent >= MIN_RED)
27 return HE_COLORSET_TOP;
28 if (percent >= MIN_GREEN)
29 return HE_COLORSET_MEDIUM;
30 return HE_COLORSET_NORMAL;
31}
32
33int ui_browser__set_color(struct ui_browser *browser, int color)
34{
35 int ret = browser->current_color;
36 browser->current_color = color;
37 SLsmg_set_color(color);
38 return ret;
39}
40
41void ui_browser__set_percent_color(struct ui_browser *browser,
42 double percent, bool current)
43{
44 int color = ui_browser__percent_color(browser, percent, current);
45 ui_browser__set_color(browser, color);
46}
47
48void ui_browser__gotorc_title(struct ui_browser *browser, int y, int x)
49{
50 SLsmg_gotorc(browser->y + y, browser->x + x);
51}
52
53void ui_browser__gotorc(struct ui_browser *browser, int y, int x)
54{
55 SLsmg_gotorc(browser->y + y + browser->extra_title_lines, browser->x + x);
56}
57
58void ui_browser__write_nstring(struct ui_browser *browser __maybe_unused, const char *msg,
59 unsigned int width)
60{
61 slsmg_write_nstring(msg, width);
62}
63
64void ui_browser__vprintf(struct ui_browser *browser __maybe_unused, const char *fmt, va_list args)
65{
66 slsmg_vprintf(fmt, args);
67}
68
69void ui_browser__printf(struct ui_browser *browser __maybe_unused, const char *fmt, ...)
70{
71 va_list args;
72
73 va_start(args, fmt);
74 ui_browser__vprintf(browser, fmt, args);
75 va_end(args);
76}
77
78static struct list_head *
79ui_browser__list_head_filter_entries(struct ui_browser *browser,
80 struct list_head *pos)
81{
82 do {
83 if (!browser->filter || !browser->filter(browser, pos))
84 return pos;
85 pos = pos->next;
86 } while (pos != browser->entries);
87
88 return NULL;
89}
90
91static struct list_head *
92ui_browser__list_head_filter_prev_entries(struct ui_browser *browser,
93 struct list_head *pos)
94{
95 do {
96 if (!browser->filter || !browser->filter(browser, pos))
97 return pos;
98 pos = pos->prev;
99 } while (pos != browser->entries);
100
101 return NULL;
102}
103
104void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence)
105{
106 struct list_head *head = browser->entries;
107 struct list_head *pos;
108
109 if (browser->nr_entries == 0)
110 return;
111
112 switch (whence) {
113 case SEEK_SET:
114 pos = ui_browser__list_head_filter_entries(browser, head->next);
115 break;
116 case SEEK_CUR:
117 pos = browser->top;
118 break;
119 case SEEK_END:
120 pos = ui_browser__list_head_filter_prev_entries(browser, head->prev);
121 break;
122 default:
123 return;
124 }
125
126 assert(pos != NULL);
127
128 if (offset > 0) {
129 while (offset-- != 0)
130 pos = ui_browser__list_head_filter_entries(browser, pos->next);
131 } else {
132 while (offset++ != 0)
133 pos = ui_browser__list_head_filter_prev_entries(browser, pos->prev);
134 }
135
136 browser->top = pos;
137}
138
139void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence)
140{
141 struct rb_root *root = browser->entries;
142 struct rb_node *nd;
143
144 switch (whence) {
145 case SEEK_SET:
146 nd = rb_first(root);
147 break;
148 case SEEK_CUR:
149 nd = browser->top;
150 break;
151 case SEEK_END:
152 nd = rb_last(root);
153 break;
154 default:
155 return;
156 }
157
158 if (offset > 0) {
159 while (offset-- != 0)
160 nd = rb_next(nd);
161 } else {
162 while (offset++ != 0)
163 nd = rb_prev(nd);
164 }
165
166 browser->top = nd;
167}
168
169unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser)
170{
171 struct rb_node *nd;
172 int row = 0;
173
174 if (browser->top == NULL)
175 browser->top = rb_first(browser->entries);
176
177 nd = browser->top;
178
179 while (nd != NULL) {
180 ui_browser__gotorc(browser, row, 0);
181 browser->write(browser, nd, row);
182 if (++row == browser->rows)
183 break;
184 nd = rb_next(nd);
185 }
186
187 return row;
188}
189
190bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row)
191{
192 return browser->top_idx + row == browser->index;
193}
194
195void ui_browser__refresh_dimensions(struct ui_browser *browser)
196{
197 browser->width = SLtt_Screen_Cols - 1;
198 browser->height = browser->rows = SLtt_Screen_Rows - 2;
199 browser->rows -= browser->extra_title_lines;
200 browser->y = 1;
201 browser->x = 0;
202}
203
204void ui_browser__handle_resize(struct ui_browser *browser)
205{
206 ui__refresh_dimensions(false);
207 ui_browser__show(browser, browser->title, ui_helpline__current);
208 ui_browser__refresh(browser);
209}
210
211int ui_browser__warning(struct ui_browser *browser, int timeout,
212 const char *format, ...)
213{
214 va_list args;
215 char *text;
216 int key = 0, err;
217
218 va_start(args, format);
219 err = vasprintf(&text, format, args);
220 va_end(args);
221
222 if (err < 0) {
223 va_start(args, format);
224 ui_helpline__vpush(format, args);
225 va_end(args);
226 } else {
227 while ((key = ui__question_window("Warning!", text,
228 "Press any key...",
229 timeout)) == K_RESIZE)
230 ui_browser__handle_resize(browser);
231 free(text);
232 }
233
234 return key;
235}
236
237int ui_browser__help_window(struct ui_browser *browser, const char *text)
238{
239 int key;
240
241 while ((key = ui__help_window(text)) == K_RESIZE)
242 ui_browser__handle_resize(browser);
243
244 return key;
245}
246
247bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text)
248{
249 int key;
250
251 while ((key = ui__dialog_yesno(text)) == K_RESIZE)
252 ui_browser__handle_resize(browser);
253
254 return key == K_ENTER || toupper(key) == 'Y';
255}
256
257void ui_browser__reset_index(struct ui_browser *browser)
258{
259 browser->index = browser->top_idx = 0;
260 browser->seek(browser, 0, SEEK_SET);
261}
262
263void __ui_browser__show_title(struct ui_browser *browser, const char *title)
264{
265 SLsmg_gotorc(0, 0);
266 ui_browser__set_color(browser, HE_COLORSET_ROOT);
267 ui_browser__write_nstring(browser, title, browser->width + 1);
268}
269
270void ui_browser__show_title(struct ui_browser *browser, const char *title)
271{
272 pthread_mutex_lock(&ui__lock);
273 __ui_browser__show_title(browser, title);
274 pthread_mutex_unlock(&ui__lock);
275}
276
277int ui_browser__show(struct ui_browser *browser, const char *title,
278 const char *helpline, ...)
279{
280 int err;
281 va_list ap;
282
283 if (browser->refresh_dimensions == NULL)
284 browser->refresh_dimensions = ui_browser__refresh_dimensions;
285
286 browser->refresh_dimensions(browser);
287
288 pthread_mutex_lock(&ui__lock);
289 __ui_browser__show_title(browser, title);
290
291 browser->title = title;
292 zfree(&browser->helpline);
293
294 va_start(ap, helpline);
295 err = vasprintf(&browser->helpline, helpline, ap);
296 va_end(ap);
297 if (err > 0)
298 ui_helpline__push(browser->helpline);
299 pthread_mutex_unlock(&ui__lock);
300 return err ? 0 : -1;
301}
302
303void ui_browser__hide(struct ui_browser *browser)
304{
305 pthread_mutex_lock(&ui__lock);
306 ui_helpline__pop();
307 zfree(&browser->helpline);
308 pthread_mutex_unlock(&ui__lock);
309}
310
311static void ui_browser__scrollbar_set(struct ui_browser *browser)
312{
313 int height = browser->height, h = 0, pct = 0,
314 col = browser->width,
315 row = 0;
316
317 if (browser->nr_entries > 1) {
318 pct = ((browser->index * (browser->height - 1)) /
319 (browser->nr_entries - 1));
320 }
321
322 SLsmg_set_char_set(1);
323
324 while (h < height) {
325 ui_browser__gotorc(browser, row++, col);
326 SLsmg_write_char(h == pct ? SLSMG_DIAMOND_CHAR : SLSMG_CKBRD_CHAR);
327 ++h;
328 }
329
330 SLsmg_set_char_set(0);
331}
332
333static int __ui_browser__refresh(struct ui_browser *browser)
334{
335 int row;
336 int width = browser->width;
337
338 row = browser->refresh(browser);
339 ui_browser__set_color(browser, HE_COLORSET_NORMAL);
340
341 if (!browser->use_navkeypressed || browser->navkeypressed)
342 ui_browser__scrollbar_set(browser);
343 else
344 width += 1;
345
346 SLsmg_fill_region(browser->y + row + browser->extra_title_lines, browser->x,
347 browser->rows - row, width, ' ');
348
349 return 0;
350}
351
352int ui_browser__refresh(struct ui_browser *browser)
353{
354 pthread_mutex_lock(&ui__lock);
355 __ui_browser__refresh(browser);
356 pthread_mutex_unlock(&ui__lock);
357
358 return 0;
359}
360
361/*
362 * Here we're updating nr_entries _after_ we started browsing, i.e. we have to
363 * forget about any reference to any entry in the underlying data structure,
364 * that is why we do a SEEK_SET. Think about 'perf top' in the hists browser
365 * after an output_resort and hist decay.
366 */
367void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries)
368{
369 off_t offset = nr_entries - browser->nr_entries;
370
371 browser->nr_entries = nr_entries;
372
373 if (offset < 0) {
374 if (browser->top_idx < (u64)-offset)
375 offset = -browser->top_idx;
376
377 browser->index += offset;
378 browser->top_idx += offset;
379 }
380
381 browser->top = NULL;
382 browser->seek(browser, browser->top_idx, SEEK_SET);
383}
384
385int ui_browser__run(struct ui_browser *browser, int delay_secs)
386{
387 int err, key;
388
389 while (1) {
390 off_t offset;
391
392 pthread_mutex_lock(&ui__lock);
393 err = __ui_browser__refresh(browser);
394 SLsmg_refresh();
395 pthread_mutex_unlock(&ui__lock);
396 if (err < 0)
397 break;
398
399 key = ui__getch(delay_secs);
400
401 if (key == K_RESIZE) {
402 ui__refresh_dimensions(false);
403 browser->refresh_dimensions(browser);
404 __ui_browser__show_title(browser, browser->title);
405 ui_helpline__puts(browser->helpline);
406 continue;
407 }
408
409 if (browser->use_navkeypressed && !browser->navkeypressed) {
410 if (key == K_DOWN || key == K_UP ||
411 (browser->columns && (key == K_LEFT || key == K_RIGHT)) ||
412 key == K_PGDN || key == K_PGUP ||
413 key == K_HOME || key == K_END ||
414 key == ' ') {
415 browser->navkeypressed = true;
416 continue;
417 } else
418 return key;
419 }
420
421 switch (key) {
422 case K_DOWN:
423 if (browser->index == browser->nr_entries - 1)
424 break;
425 ++browser->index;
426 if (browser->index == browser->top_idx + browser->rows) {
427 ++browser->top_idx;
428 browser->seek(browser, +1, SEEK_CUR);
429 }
430 break;
431 case K_UP:
432 if (browser->index == 0)
433 break;
434 --browser->index;
435 if (browser->index < browser->top_idx) {
436 --browser->top_idx;
437 browser->seek(browser, -1, SEEK_CUR);
438 }
439 break;
440 case K_RIGHT:
441 if (!browser->columns)
442 goto out;
443 if (browser->horiz_scroll < browser->columns - 1)
444 ++browser->horiz_scroll;
445 break;
446 case K_LEFT:
447 if (!browser->columns)
448 goto out;
449 if (browser->horiz_scroll != 0)
450 --browser->horiz_scroll;
451 break;
452 case K_PGDN:
453 case ' ':
454 if (browser->top_idx + browser->rows > browser->nr_entries - 1)
455 break;
456
457 offset = browser->rows;
458 if (browser->index + offset > browser->nr_entries - 1)
459 offset = browser->nr_entries - 1 - browser->index;
460 browser->index += offset;
461 browser->top_idx += offset;
462 browser->seek(browser, +offset, SEEK_CUR);
463 break;
464 case K_PGUP:
465 if (browser->top_idx == 0)
466 break;
467
468 if (browser->top_idx < browser->rows)
469 offset = browser->top_idx;
470 else
471 offset = browser->rows;
472
473 browser->index -= offset;
474 browser->top_idx -= offset;
475 browser->seek(browser, -offset, SEEK_CUR);
476 break;
477 case K_HOME:
478 ui_browser__reset_index(browser);
479 break;
480 case K_END:
481 offset = browser->rows - 1;
482 if (offset >= browser->nr_entries)
483 offset = browser->nr_entries - 1;
484
485 browser->index = browser->nr_entries - 1;
486 browser->top_idx = browser->index - offset;
487 browser->seek(browser, -offset, SEEK_END);
488 break;
489 default:
490 out:
491 return key;
492 }
493 }
494 return -1;
495}
496
497unsigned int ui_browser__list_head_refresh(struct ui_browser *browser)
498{
499 struct list_head *pos;
500 struct list_head *head = browser->entries;
501 int row = 0;
502
503 if (browser->top == NULL || browser->top == browser->entries)
504 browser->top = ui_browser__list_head_filter_entries(browser, head->next);
505
506 pos = browser->top;
507
508 list_for_each_from(pos, head) {
509 if (!browser->filter || !browser->filter(browser, pos)) {
510 ui_browser__gotorc(browser, row, 0);
511 browser->write(browser, pos, row);
512 if (++row == browser->rows)
513 break;
514 }
515 }
516
517 return row;
518}
519
520static struct ui_browser_colorset {
521 const char *name, *fg, *bg;
522 int colorset;
523} ui_browser__colorsets[] = {
524 {
525 .colorset = HE_COLORSET_TOP,
526 .name = "top",
527 .fg = "red",
528 .bg = "default",
529 },
530 {
531 .colorset = HE_COLORSET_MEDIUM,
532 .name = "medium",
533 .fg = "green",
534 .bg = "default",
535 },
536 {
537 .colorset = HE_COLORSET_NORMAL,
538 .name = "normal",
539 .fg = "default",
540 .bg = "default",
541 },
542 {
543 .colorset = HE_COLORSET_SELECTED,
544 .name = "selected",
545 .fg = "black",
546 .bg = "yellow",
547 },
548 {
549 .colorset = HE_COLORSET_JUMP_ARROWS,
550 .name = "jump_arrows",
551 .fg = "blue",
552 .bg = "default",
553 },
554 {
555 .colorset = HE_COLORSET_ADDR,
556 .name = "addr",
557 .fg = "magenta",
558 .bg = "default",
559 },
560 {
561 .colorset = HE_COLORSET_ROOT,
562 .name = "root",
563 .fg = "white",
564 .bg = "blue",
565 },
566 {
567 .name = NULL,
568 }
569};
570
571
572static int ui_browser__color_config(const char *var, const char *value,
573 void *data __maybe_unused)
574{
575 char *fg = NULL, *bg;
576 int i;
577
578 /* same dir for all commands */
579 if (!strstarts(var, "colors.") != 0)
580 return 0;
581
582 for (i = 0; ui_browser__colorsets[i].name != NULL; ++i) {
583 const char *name = var + 7;
584
585 if (strcmp(ui_browser__colorsets[i].name, name) != 0)
586 continue;
587
588 fg = strdup(value);
589 if (fg == NULL)
590 break;
591
592 bg = strchr(fg, ',');
593 if (bg == NULL)
594 break;
595
596 *bg = '\0';
597 bg = ltrim(++bg);
598 ui_browser__colorsets[i].bg = bg;
599 ui_browser__colorsets[i].fg = fg;
600 return 0;
601 }
602
603 free(fg);
604 return -1;
605}
606
607void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence)
608{
609 switch (whence) {
610 case SEEK_SET:
611 browser->top = browser->entries;
612 break;
613 case SEEK_CUR:
614 browser->top = browser->top + browser->top_idx + offset;
615 break;
616 case SEEK_END:
617 browser->top = browser->top + browser->nr_entries - 1 + offset;
618 break;
619 default:
620 return;
621 }
622}
623
624unsigned int ui_browser__argv_refresh(struct ui_browser *browser)
625{
626 unsigned int row = 0, idx = browser->top_idx;
627 char **pos;
628
629 if (browser->top == NULL)
630 browser->top = browser->entries;
631
632 pos = (char **)browser->top;
633 while (idx < browser->nr_entries) {
634 if (!browser->filter || !browser->filter(browser, *pos)) {
635 ui_browser__gotorc(browser, row, 0);
636 browser->write(browser, pos, row);
637 if (++row == browser->rows)
638 break;
639 }
640
641 ++idx;
642 ++pos;
643 }
644
645 return row;
646}
647
648void __ui_browser__vline(struct ui_browser *browser, unsigned int column,
649 u16 start, u16 end)
650{
651 SLsmg_set_char_set(1);
652 ui_browser__gotorc(browser, start, column);
653 SLsmg_draw_vline(end - start + 1);
654 SLsmg_set_char_set(0);
655}
656
657void ui_browser__write_graph(struct ui_browser *browser __maybe_unused,
658 int graph)
659{
660 SLsmg_set_char_set(1);
661 SLsmg_write_char(graph);
662 SLsmg_set_char_set(0);
663}
664
665static void __ui_browser__line_arrow_up(struct ui_browser *browser,
666 unsigned int column,
667 u64 start, u64 end)
668{
669 unsigned int row, end_row;
670
671 SLsmg_set_char_set(1);
672
673 if (start < browser->top_idx + browser->rows) {
674 row = start - browser->top_idx;
675 ui_browser__gotorc(browser, row, column);
676 SLsmg_write_char(SLSMG_LLCORN_CHAR);
677 ui_browser__gotorc(browser, row, column + 1);
678 SLsmg_draw_hline(2);
679
680 if (row-- == 0)
681 goto out;
682 } else
683 row = browser->rows - 1;
684
685 if (end > browser->top_idx)
686 end_row = end - browser->top_idx;
687 else
688 end_row = 0;
689
690 ui_browser__gotorc(browser, end_row, column);
691 SLsmg_draw_vline(row - end_row + 1);
692
693 ui_browser__gotorc(browser, end_row, column);
694 if (end >= browser->top_idx) {
695 SLsmg_write_char(SLSMG_ULCORN_CHAR);
696 ui_browser__gotorc(browser, end_row, column + 1);
697 SLsmg_write_char(SLSMG_HLINE_CHAR);
698 ui_browser__gotorc(browser, end_row, column + 2);
699 SLsmg_write_char(SLSMG_RARROW_CHAR);
700 }
701out:
702 SLsmg_set_char_set(0);
703}
704
705static void __ui_browser__line_arrow_down(struct ui_browser *browser,
706 unsigned int column,
707 u64 start, u64 end)
708{
709 unsigned int row, end_row;
710
711 SLsmg_set_char_set(1);
712
713 if (start >= browser->top_idx) {
714 row = start - browser->top_idx;
715 ui_browser__gotorc(browser, row, column);
716 SLsmg_write_char(SLSMG_ULCORN_CHAR);
717 ui_browser__gotorc(browser, row, column + 1);
718 SLsmg_draw_hline(2);
719
720 if (++row == 0)
721 goto out;
722 } else
723 row = 0;
724
725 if (end >= browser->top_idx + browser->rows)
726 end_row = browser->rows - 1;
727 else
728 end_row = end - browser->top_idx;
729
730 ui_browser__gotorc(browser, row, column);
731 SLsmg_draw_vline(end_row - row + 1);
732
733 ui_browser__gotorc(browser, end_row, column);
734 if (end < browser->top_idx + browser->rows) {
735 SLsmg_write_char(SLSMG_LLCORN_CHAR);
736 ui_browser__gotorc(browser, end_row, column + 1);
737 SLsmg_write_char(SLSMG_HLINE_CHAR);
738 ui_browser__gotorc(browser, end_row, column + 2);
739 SLsmg_write_char(SLSMG_RARROW_CHAR);
740 }
741out:
742 SLsmg_set_char_set(0);
743}
744
745void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,
746 u64 start, u64 end)
747{
748 if (start > end)
749 __ui_browser__line_arrow_up(browser, column, start, end);
750 else
751 __ui_browser__line_arrow_down(browser, column, start, end);
752}
753
754void ui_browser__mark_fused(struct ui_browser *browser, unsigned int column,
755 unsigned int row, bool arrow_down)
756{
757 unsigned int end_row;
758
759 if (row >= browser->top_idx)
760 end_row = row - browser->top_idx;
761 else
762 return;
763
764 SLsmg_set_char_set(1);
765
766 if (arrow_down) {
767 ui_browser__gotorc(browser, end_row, column - 1);
768 SLsmg_write_char(SLSMG_ULCORN_CHAR);
769 ui_browser__gotorc(browser, end_row, column);
770 SLsmg_draw_hline(2);
771 ui_browser__gotorc(browser, end_row + 1, column - 1);
772 SLsmg_write_char(SLSMG_LTEE_CHAR);
773 } else {
774 ui_browser__gotorc(browser, end_row, column - 1);
775 SLsmg_write_char(SLSMG_LTEE_CHAR);
776 ui_browser__gotorc(browser, end_row, column);
777 SLsmg_draw_hline(2);
778 }
779
780 SLsmg_set_char_set(0);
781}
782
783void ui_browser__init(void)
784{
785 int i = 0;
786
787 perf_config(ui_browser__color_config, NULL);
788
789 while (ui_browser__colorsets[i].name) {
790 struct ui_browser_colorset *c = &ui_browser__colorsets[i++];
791 sltt_set_color(c->colorset, c->name, c->fg, c->bg);
792 }
793}
1#include "../util.h"
2#include "../config.h"
3#include "../../perf.h"
4#include "libslang.h"
5#include "ui.h"
6#include "util.h"
7#include <linux/compiler.h>
8#include <linux/list.h>
9#include <linux/rbtree.h>
10#include <stdlib.h>
11#include <sys/ttydefaults.h>
12#include "browser.h"
13#include "helpline.h"
14#include "keysyms.h"
15#include "../color.h"
16
17static int ui_browser__percent_color(struct ui_browser *browser,
18 double percent, bool current)
19{
20 if (current && (!browser->use_navkeypressed || browser->navkeypressed))
21 return HE_COLORSET_SELECTED;
22 if (percent >= MIN_RED)
23 return HE_COLORSET_TOP;
24 if (percent >= MIN_GREEN)
25 return HE_COLORSET_MEDIUM;
26 return HE_COLORSET_NORMAL;
27}
28
29int ui_browser__set_color(struct ui_browser *browser, int color)
30{
31 int ret = browser->current_color;
32 browser->current_color = color;
33 SLsmg_set_color(color);
34 return ret;
35}
36
37void ui_browser__set_percent_color(struct ui_browser *browser,
38 double percent, bool current)
39{
40 int color = ui_browser__percent_color(browser, percent, current);
41 ui_browser__set_color(browser, color);
42}
43
44void ui_browser__gotorc(struct ui_browser *browser, int y, int x)
45{
46 SLsmg_gotorc(browser->y + y, browser->x + x);
47}
48
49void ui_browser__write_nstring(struct ui_browser *browser __maybe_unused, const char *msg,
50 unsigned int width)
51{
52 slsmg_write_nstring(msg, width);
53}
54
55void ui_browser__printf(struct ui_browser *browser __maybe_unused, const char *fmt, ...)
56{
57 va_list args;
58
59 va_start(args, fmt);
60 slsmg_vprintf(fmt, args);
61 va_end(args);
62}
63
64static struct list_head *
65ui_browser__list_head_filter_entries(struct ui_browser *browser,
66 struct list_head *pos)
67{
68 do {
69 if (!browser->filter || !browser->filter(browser, pos))
70 return pos;
71 pos = pos->next;
72 } while (pos != browser->entries);
73
74 return NULL;
75}
76
77static struct list_head *
78ui_browser__list_head_filter_prev_entries(struct ui_browser *browser,
79 struct list_head *pos)
80{
81 do {
82 if (!browser->filter || !browser->filter(browser, pos))
83 return pos;
84 pos = pos->prev;
85 } while (pos != browser->entries);
86
87 return NULL;
88}
89
90void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence)
91{
92 struct list_head *head = browser->entries;
93 struct list_head *pos;
94
95 if (browser->nr_entries == 0)
96 return;
97
98 switch (whence) {
99 case SEEK_SET:
100 pos = ui_browser__list_head_filter_entries(browser, head->next);
101 break;
102 case SEEK_CUR:
103 pos = browser->top;
104 break;
105 case SEEK_END:
106 pos = ui_browser__list_head_filter_prev_entries(browser, head->prev);
107 break;
108 default:
109 return;
110 }
111
112 assert(pos != NULL);
113
114 if (offset > 0) {
115 while (offset-- != 0)
116 pos = ui_browser__list_head_filter_entries(browser, pos->next);
117 } else {
118 while (offset++ != 0)
119 pos = ui_browser__list_head_filter_prev_entries(browser, pos->prev);
120 }
121
122 browser->top = pos;
123}
124
125void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence)
126{
127 struct rb_root *root = browser->entries;
128 struct rb_node *nd;
129
130 switch (whence) {
131 case SEEK_SET:
132 nd = rb_first(root);
133 break;
134 case SEEK_CUR:
135 nd = browser->top;
136 break;
137 case SEEK_END:
138 nd = rb_last(root);
139 break;
140 default:
141 return;
142 }
143
144 if (offset > 0) {
145 while (offset-- != 0)
146 nd = rb_next(nd);
147 } else {
148 while (offset++ != 0)
149 nd = rb_prev(nd);
150 }
151
152 browser->top = nd;
153}
154
155unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser)
156{
157 struct rb_node *nd;
158 int row = 0;
159
160 if (browser->top == NULL)
161 browser->top = rb_first(browser->entries);
162
163 nd = browser->top;
164
165 while (nd != NULL) {
166 ui_browser__gotorc(browser, row, 0);
167 browser->write(browser, nd, row);
168 if (++row == browser->rows)
169 break;
170 nd = rb_next(nd);
171 }
172
173 return row;
174}
175
176bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row)
177{
178 return browser->top_idx + row == browser->index;
179}
180
181void ui_browser__refresh_dimensions(struct ui_browser *browser)
182{
183 browser->width = SLtt_Screen_Cols - 1;
184 browser->height = browser->rows = SLtt_Screen_Rows - 2;
185 browser->y = 1;
186 browser->x = 0;
187}
188
189void ui_browser__handle_resize(struct ui_browser *browser)
190{
191 ui__refresh_dimensions(false);
192 ui_browser__show(browser, browser->title, ui_helpline__current);
193 ui_browser__refresh(browser);
194}
195
196int ui_browser__warning(struct ui_browser *browser, int timeout,
197 const char *format, ...)
198{
199 va_list args;
200 char *text;
201 int key = 0, err;
202
203 va_start(args, format);
204 err = vasprintf(&text, format, args);
205 va_end(args);
206
207 if (err < 0) {
208 va_start(args, format);
209 ui_helpline__vpush(format, args);
210 va_end(args);
211 } else {
212 while ((key = ui__question_window("Warning!", text,
213 "Press any key...",
214 timeout)) == K_RESIZE)
215 ui_browser__handle_resize(browser);
216 free(text);
217 }
218
219 return key;
220}
221
222int ui_browser__help_window(struct ui_browser *browser, const char *text)
223{
224 int key;
225
226 while ((key = ui__help_window(text)) == K_RESIZE)
227 ui_browser__handle_resize(browser);
228
229 return key;
230}
231
232bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text)
233{
234 int key;
235
236 while ((key = ui__dialog_yesno(text)) == K_RESIZE)
237 ui_browser__handle_resize(browser);
238
239 return key == K_ENTER || toupper(key) == 'Y';
240}
241
242void ui_browser__reset_index(struct ui_browser *browser)
243{
244 browser->index = browser->top_idx = 0;
245 browser->seek(browser, 0, SEEK_SET);
246}
247
248void __ui_browser__show_title(struct ui_browser *browser, const char *title)
249{
250 SLsmg_gotorc(0, 0);
251 ui_browser__set_color(browser, HE_COLORSET_ROOT);
252 ui_browser__write_nstring(browser, title, browser->width + 1);
253}
254
255void ui_browser__show_title(struct ui_browser *browser, const char *title)
256{
257 pthread_mutex_lock(&ui__lock);
258 __ui_browser__show_title(browser, title);
259 pthread_mutex_unlock(&ui__lock);
260}
261
262int ui_browser__show(struct ui_browser *browser, const char *title,
263 const char *helpline, ...)
264{
265 int err;
266 va_list ap;
267
268 if (browser->refresh_dimensions == NULL)
269 browser->refresh_dimensions = ui_browser__refresh_dimensions;
270
271 browser->refresh_dimensions(browser);
272
273 pthread_mutex_lock(&ui__lock);
274 __ui_browser__show_title(browser, title);
275
276 browser->title = title;
277 zfree(&browser->helpline);
278
279 va_start(ap, helpline);
280 err = vasprintf(&browser->helpline, helpline, ap);
281 va_end(ap);
282 if (err > 0)
283 ui_helpline__push(browser->helpline);
284 pthread_mutex_unlock(&ui__lock);
285 return err ? 0 : -1;
286}
287
288void ui_browser__hide(struct ui_browser *browser)
289{
290 pthread_mutex_lock(&ui__lock);
291 ui_helpline__pop();
292 zfree(&browser->helpline);
293 pthread_mutex_unlock(&ui__lock);
294}
295
296static void ui_browser__scrollbar_set(struct ui_browser *browser)
297{
298 int height = browser->height, h = 0, pct = 0,
299 col = browser->width,
300 row = 0;
301
302 if (browser->nr_entries > 1) {
303 pct = ((browser->index * (browser->height - 1)) /
304 (browser->nr_entries - 1));
305 }
306
307 SLsmg_set_char_set(1);
308
309 while (h < height) {
310 ui_browser__gotorc(browser, row++, col);
311 SLsmg_write_char(h == pct ? SLSMG_DIAMOND_CHAR : SLSMG_CKBRD_CHAR);
312 ++h;
313 }
314
315 SLsmg_set_char_set(0);
316}
317
318static int __ui_browser__refresh(struct ui_browser *browser)
319{
320 int row;
321 int width = browser->width;
322
323 row = browser->refresh(browser);
324 ui_browser__set_color(browser, HE_COLORSET_NORMAL);
325
326 if (!browser->use_navkeypressed || browser->navkeypressed)
327 ui_browser__scrollbar_set(browser);
328 else
329 width += 1;
330
331 SLsmg_fill_region(browser->y + row, browser->x,
332 browser->height - row, width, ' ');
333
334 return 0;
335}
336
337int ui_browser__refresh(struct ui_browser *browser)
338{
339 pthread_mutex_lock(&ui__lock);
340 __ui_browser__refresh(browser);
341 pthread_mutex_unlock(&ui__lock);
342
343 return 0;
344}
345
346/*
347 * Here we're updating nr_entries _after_ we started browsing, i.e. we have to
348 * forget about any reference to any entry in the underlying data structure,
349 * that is why we do a SEEK_SET. Think about 'perf top' in the hists browser
350 * after an output_resort and hist decay.
351 */
352void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries)
353{
354 off_t offset = nr_entries - browser->nr_entries;
355
356 browser->nr_entries = nr_entries;
357
358 if (offset < 0) {
359 if (browser->top_idx < (u64)-offset)
360 offset = -browser->top_idx;
361
362 browser->index += offset;
363 browser->top_idx += offset;
364 }
365
366 browser->top = NULL;
367 browser->seek(browser, browser->top_idx, SEEK_SET);
368}
369
370int ui_browser__run(struct ui_browser *browser, int delay_secs)
371{
372 int err, key;
373
374 while (1) {
375 off_t offset;
376
377 pthread_mutex_lock(&ui__lock);
378 err = __ui_browser__refresh(browser);
379 SLsmg_refresh();
380 pthread_mutex_unlock(&ui__lock);
381 if (err < 0)
382 break;
383
384 key = ui__getch(delay_secs);
385
386 if (key == K_RESIZE) {
387 ui__refresh_dimensions(false);
388 browser->refresh_dimensions(browser);
389 __ui_browser__show_title(browser, browser->title);
390 ui_helpline__puts(browser->helpline);
391 continue;
392 }
393
394 if (browser->use_navkeypressed && !browser->navkeypressed) {
395 if (key == K_DOWN || key == K_UP ||
396 (browser->columns && (key == K_LEFT || key == K_RIGHT)) ||
397 key == K_PGDN || key == K_PGUP ||
398 key == K_HOME || key == K_END ||
399 key == ' ') {
400 browser->navkeypressed = true;
401 continue;
402 } else
403 return key;
404 }
405
406 switch (key) {
407 case K_DOWN:
408 if (browser->index == browser->nr_entries - 1)
409 break;
410 ++browser->index;
411 if (browser->index == browser->top_idx + browser->rows) {
412 ++browser->top_idx;
413 browser->seek(browser, +1, SEEK_CUR);
414 }
415 break;
416 case K_UP:
417 if (browser->index == 0)
418 break;
419 --browser->index;
420 if (browser->index < browser->top_idx) {
421 --browser->top_idx;
422 browser->seek(browser, -1, SEEK_CUR);
423 }
424 break;
425 case K_RIGHT:
426 if (!browser->columns)
427 goto out;
428 if (browser->horiz_scroll < browser->columns - 1)
429 ++browser->horiz_scroll;
430 break;
431 case K_LEFT:
432 if (!browser->columns)
433 goto out;
434 if (browser->horiz_scroll != 0)
435 --browser->horiz_scroll;
436 break;
437 case K_PGDN:
438 case ' ':
439 if (browser->top_idx + browser->rows > browser->nr_entries - 1)
440 break;
441
442 offset = browser->rows;
443 if (browser->index + offset > browser->nr_entries - 1)
444 offset = browser->nr_entries - 1 - browser->index;
445 browser->index += offset;
446 browser->top_idx += offset;
447 browser->seek(browser, +offset, SEEK_CUR);
448 break;
449 case K_PGUP:
450 if (browser->top_idx == 0)
451 break;
452
453 if (browser->top_idx < browser->rows)
454 offset = browser->top_idx;
455 else
456 offset = browser->rows;
457
458 browser->index -= offset;
459 browser->top_idx -= offset;
460 browser->seek(browser, -offset, SEEK_CUR);
461 break;
462 case K_HOME:
463 ui_browser__reset_index(browser);
464 break;
465 case K_END:
466 offset = browser->rows - 1;
467 if (offset >= browser->nr_entries)
468 offset = browser->nr_entries - 1;
469
470 browser->index = browser->nr_entries - 1;
471 browser->top_idx = browser->index - offset;
472 browser->seek(browser, -offset, SEEK_END);
473 break;
474 default:
475 out:
476 return key;
477 }
478 }
479 return -1;
480}
481
482unsigned int ui_browser__list_head_refresh(struct ui_browser *browser)
483{
484 struct list_head *pos;
485 struct list_head *head = browser->entries;
486 int row = 0;
487
488 if (browser->top == NULL || browser->top == browser->entries)
489 browser->top = ui_browser__list_head_filter_entries(browser, head->next);
490
491 pos = browser->top;
492
493 list_for_each_from(pos, head) {
494 if (!browser->filter || !browser->filter(browser, pos)) {
495 ui_browser__gotorc(browser, row, 0);
496 browser->write(browser, pos, row);
497 if (++row == browser->rows)
498 break;
499 }
500 }
501
502 return row;
503}
504
505static struct ui_browser_colorset {
506 const char *name, *fg, *bg;
507 int colorset;
508} ui_browser__colorsets[] = {
509 {
510 .colorset = HE_COLORSET_TOP,
511 .name = "top",
512 .fg = "red",
513 .bg = "default",
514 },
515 {
516 .colorset = HE_COLORSET_MEDIUM,
517 .name = "medium",
518 .fg = "green",
519 .bg = "default",
520 },
521 {
522 .colorset = HE_COLORSET_NORMAL,
523 .name = "normal",
524 .fg = "default",
525 .bg = "default",
526 },
527 {
528 .colorset = HE_COLORSET_SELECTED,
529 .name = "selected",
530 .fg = "black",
531 .bg = "yellow",
532 },
533 {
534 .colorset = HE_COLORSET_JUMP_ARROWS,
535 .name = "jump_arrows",
536 .fg = "blue",
537 .bg = "default",
538 },
539 {
540 .colorset = HE_COLORSET_ADDR,
541 .name = "addr",
542 .fg = "magenta",
543 .bg = "default",
544 },
545 {
546 .colorset = HE_COLORSET_ROOT,
547 .name = "root",
548 .fg = "white",
549 .bg = "blue",
550 },
551 {
552 .name = NULL,
553 }
554};
555
556
557static int ui_browser__color_config(const char *var, const char *value,
558 void *data __maybe_unused)
559{
560 char *fg = NULL, *bg;
561 int i;
562
563 /* same dir for all commands */
564 if (prefixcmp(var, "colors.") != 0)
565 return 0;
566
567 for (i = 0; ui_browser__colorsets[i].name != NULL; ++i) {
568 const char *name = var + 7;
569
570 if (strcmp(ui_browser__colorsets[i].name, name) != 0)
571 continue;
572
573 fg = strdup(value);
574 if (fg == NULL)
575 break;
576
577 bg = strchr(fg, ',');
578 if (bg == NULL)
579 break;
580
581 *bg = '\0';
582 while (isspace(*++bg));
583 ui_browser__colorsets[i].bg = bg;
584 ui_browser__colorsets[i].fg = fg;
585 return 0;
586 }
587
588 free(fg);
589 return -1;
590}
591
592void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence)
593{
594 switch (whence) {
595 case SEEK_SET:
596 browser->top = browser->entries;
597 break;
598 case SEEK_CUR:
599 browser->top = browser->top + browser->top_idx + offset;
600 break;
601 case SEEK_END:
602 browser->top = browser->top + browser->nr_entries - 1 + offset;
603 break;
604 default:
605 return;
606 }
607}
608
609unsigned int ui_browser__argv_refresh(struct ui_browser *browser)
610{
611 unsigned int row = 0, idx = browser->top_idx;
612 char **pos;
613
614 if (browser->top == NULL)
615 browser->top = browser->entries;
616
617 pos = (char **)browser->top;
618 while (idx < browser->nr_entries) {
619 if (!browser->filter || !browser->filter(browser, *pos)) {
620 ui_browser__gotorc(browser, row, 0);
621 browser->write(browser, pos, row);
622 if (++row == browser->rows)
623 break;
624 }
625
626 ++idx;
627 ++pos;
628 }
629
630 return row;
631}
632
633void __ui_browser__vline(struct ui_browser *browser, unsigned int column,
634 u16 start, u16 end)
635{
636 SLsmg_set_char_set(1);
637 ui_browser__gotorc(browser, start, column);
638 SLsmg_draw_vline(end - start + 1);
639 SLsmg_set_char_set(0);
640}
641
642void ui_browser__write_graph(struct ui_browser *browser __maybe_unused,
643 int graph)
644{
645 SLsmg_set_char_set(1);
646 SLsmg_write_char(graph);
647 SLsmg_set_char_set(0);
648}
649
650static void __ui_browser__line_arrow_up(struct ui_browser *browser,
651 unsigned int column,
652 u64 start, u64 end)
653{
654 unsigned int row, end_row;
655
656 SLsmg_set_char_set(1);
657
658 if (start < browser->top_idx + browser->rows) {
659 row = start - browser->top_idx;
660 ui_browser__gotorc(browser, row, column);
661 SLsmg_write_char(SLSMG_LLCORN_CHAR);
662 ui_browser__gotorc(browser, row, column + 1);
663 SLsmg_draw_hline(2);
664
665 if (row-- == 0)
666 goto out;
667 } else
668 row = browser->rows - 1;
669
670 if (end > browser->top_idx)
671 end_row = end - browser->top_idx;
672 else
673 end_row = 0;
674
675 ui_browser__gotorc(browser, end_row, column);
676 SLsmg_draw_vline(row - end_row + 1);
677
678 ui_browser__gotorc(browser, end_row, column);
679 if (end >= browser->top_idx) {
680 SLsmg_write_char(SLSMG_ULCORN_CHAR);
681 ui_browser__gotorc(browser, end_row, column + 1);
682 SLsmg_write_char(SLSMG_HLINE_CHAR);
683 ui_browser__gotorc(browser, end_row, column + 2);
684 SLsmg_write_char(SLSMG_RARROW_CHAR);
685 }
686out:
687 SLsmg_set_char_set(0);
688}
689
690static void __ui_browser__line_arrow_down(struct ui_browser *browser,
691 unsigned int column,
692 u64 start, u64 end)
693{
694 unsigned int row, end_row;
695
696 SLsmg_set_char_set(1);
697
698 if (start >= browser->top_idx) {
699 row = start - browser->top_idx;
700 ui_browser__gotorc(browser, row, column);
701 SLsmg_write_char(SLSMG_ULCORN_CHAR);
702 ui_browser__gotorc(browser, row, column + 1);
703 SLsmg_draw_hline(2);
704
705 if (row++ == 0)
706 goto out;
707 } else
708 row = 0;
709
710 if (end >= browser->top_idx + browser->rows)
711 end_row = browser->rows - 1;
712 else
713 end_row = end - browser->top_idx;
714
715 ui_browser__gotorc(browser, row, column);
716 SLsmg_draw_vline(end_row - row + 1);
717
718 ui_browser__gotorc(browser, end_row, column);
719 if (end < browser->top_idx + browser->rows) {
720 SLsmg_write_char(SLSMG_LLCORN_CHAR);
721 ui_browser__gotorc(browser, end_row, column + 1);
722 SLsmg_write_char(SLSMG_HLINE_CHAR);
723 ui_browser__gotorc(browser, end_row, column + 2);
724 SLsmg_write_char(SLSMG_RARROW_CHAR);
725 }
726out:
727 SLsmg_set_char_set(0);
728}
729
730void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,
731 u64 start, u64 end)
732{
733 if (start > end)
734 __ui_browser__line_arrow_up(browser, column, start, end);
735 else
736 __ui_browser__line_arrow_down(browser, column, start, end);
737}
738
739void ui_browser__init(void)
740{
741 int i = 0;
742
743 perf_config(ui_browser__color_config, NULL);
744
745 while (ui_browser__colorsets[i].name) {
746 struct ui_browser_colorset *c = &ui_browser__colorsets[i++];
747 sltt_set_color(c->colorset, c->name, c->fg, c->bg);
748 }
749
750 annotate_browser__init();
751}